dbcve.org
Debian LinuxOperating system · Debian

CVE-2021-46144

MEDIUM · 6.1 CVSS v3.1 Published 2022-01-06
Fix available
A fix is available. Upgrade to 1.4.13 / 1.5.2 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Roundcube before 1.4.13 and 1.5.x before 1.5.2 allows XSS via an HTML e-mail message with crafted Cascading Style Sheets (CSS) token sequences.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Debian LinuxOperating system
Affected:= 9.0= 10.0= 11.0
RoundcubeApplication
Affected:< 1.4.13>= 1.5.0, < 1.5.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.4.13 / 1.5.2 or later
Fixed in 1.4.131.5.2
Vendor patch github.com →
Recommended fix High confidence

Upgrade to Roundcube 1.4.13 (if on 1.4.x branch) or 1.5.2 (if on 1.5.x branch)

  1. 1. Identify the current Roundcube version by checking program/include/iniset.php or the 'about' page in the Roundcube UI
  2. 2. Create a complete backup of the Roundcube installation directory and the associated database
  3. 3. For Debian systems: run `apt-get update && apt-get install roundcube` to receive the updated packages from Debian repositories
  4. 4. Alternatively, download the fixed version from https://roundcube.net/download/ (1.4.13 for the 1.4.x branch or 1.5.2 for the 1.5.x branch) and extract over the existing installation
  5. 5. If using Composer for installation, run `composer update roundcube/roundcubemail --no-interaction` after updating composer.json to specify the target version
  6. 6. Clear Roundcube cache directories (temp/ and cache/) to remove any cached vulnerable content
  7. 7. Verify the version has been updated to 1.4.13 or 1.5.2 and test that the webmail interface functions correctly
Caveat Security point releases typically contain only bug fixes and security patches with minimal risk of breaking changes; however, always test in a staging environment first

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $900. Get the upgrade done

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-46144 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data